Engine starting device.



P. ECHTER.

ENGINE STARTING DEVICE.

APPLICATION man MAYls. 1916.

Patented Oct. 15, i918.

2 SHEETS-SHEET I.

llllllllillll P. ECHTER.

ENGINE STARTING DEVICE.

APPLICATION FILED 11m16.191s.

1,281,3M I Patented 001.15, 1918.

2 SHEETS-SHEET 2- 45 f4 I j Z2 9 22g ffg 6 i 5mm nfoz PAUL ECHTEB', 0F NEW YORK, N. Y.

ENGINE STARTING DEVICE.

To all whom it may concern Be' it known that I, PAUL Ecu'rm, a sul ject of the Czar of Russia, and resident ofl New York city, borough of Manhattan, in the county of NewYork and State of New York, have invented cert-ainnew and useful Improvements in Engine Starti Devices, of which the following is a speci cation.

My invention relates to improvement-sin means for starting internal combustion engines and analogous machinery, and h asfor its objects to provide efficient means for the purpose stated adapted to be operated from any convenient position; to cause automatic unclutching or release of the starting'devices from the engine shaft when the latter rotates under its own power, and to cause release of the starting devices in casethe engine back kicks, in order to preventinjury.

My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming part hereof, wherein,

Figure 1 is a side view of a portion of an internal combustion engine equipped with my improvements, showing the parts in position for starting the engine, spring 9 being omitted;

2 Fig. 1;

Fig. 3 is a plan view illustrating the device unclutched from the engine shaft;

Figs. 4, 5, 6, 7 and 9 are sectional'views, respectively taken substantially on lines 4, e, 5, 5, 6, 6, 7, 7 and 9, 9, in Fig. 3; and

Fig. 8 is a plan view partly in section on the line 8, 8, 1n Fig.` 7.

Similar numerals of reference indicate corresponding parts in the several views.

is a section on the line 2, 2, in

rl`he numeral 1 in the accompanying drawings indicates a portion of an internal combustion engine, and at 2 is its crank shaft.` At 3 is a coupling or sleeve secured upon said shaft, which couplin or sleeve may be a portion of a fan belt pul ey, if desired. At 4 is a pin connecting sleeve or couphng 3 with shaft 2 and which may serve to receive may be pushed through the bore of guide Specification of Letters Patent.

for starting the engine by hand. Clutcliing means are provided between wheel 5 and .sleeve or coupling 3, whereby said wheel, when rotated, may -rotate shaft 2. I have shown sleeve 3 provided with teeth 3a adapted to be engaged by teeth 5a on the side of wheel 5, for rotating shaft 2 when wheel 5 is rotated. The clutch members 3 and 5a are normally out of engagement, and means are provided to cause their engagement when wheel 5 is rotated, and to cause disengagement of such clutch devices when shaft 2 is rotated by the engine under its ownpower. Y For-such urpose I have shown wheel 5 pro- Yvided wit a projection 5" (Fig. 8) having an outer inclined surface adapted to co'act with a corresponding rentrant portion, such as a depression or recess 7a in a toothed wheel 7 that is mounted to rotate freely uponguide (Figs. 5, 7 and 8). A spring pressed dog 8 is shown carried by guide 6 and adapted to engage the teeth of wheel 7 (Figs. 5 and 7) to limit rotation of said wheel in one Patented Oct. 15, 19l8.

Application led Hay 18, 1916. Serial No. 97,769.

direction. A coiled spring 9 is shown-con- -nected at one end with wheel 7 as bythe projection 10, and at the opposite end'4 saidl 3 and 5. lf aback kick of the engine shaft occurs while the clutch members 3 and 5 are in engagement, the wheel 7 may rotate reversely under dog 8, as compelled so to do by reverse rotation of wheel 5 through sprin 9. When wheel 5 is rotated in the direction of the arrows in Fig. 2, its projection 5b will ride along the inclined face of recess 7a of wheel v7, to cause wheel 5 to move to the left in Fig. 8, to causeclutching of members 3 and 5, the wheel 7 being prevented from rotating in a corresponding direction by dog 8. Hence, shaft 2 will be rotated, and as the teeth 3a, when the engine speeds up on starting, then slip along the teeth 5a said teeth will be unclutched, since the projection 5b registers with recess 7a, the spring 9 permitting rotation of wheel 5 independent from wheel 7 for such. purpose,

said spring, however, causing proyection 5b '55 i of dogs 20, by engaging stops 22a on memmanner, as by means of a chain 12 passing over the teeth of said wheel, or by a beltor other transmitting means. I have shown chain 12 passing over a toothed Wheel 13 that is secured upon a shaft 14, as by means of squared portions of said wheel and shaft.

Said shaft is rotatively 'supported by abracketor the like adapted to be secured to the frame of an automobile, or on any other suitable support spaced from shaft 2. Shaft lll is shown provided with an annular portion 14a rotative in a bearing in bracket 15 and having a head 14h bearin against y said bracket, a nut 16 0n said sha t retaining the latter in itsbearings (Fig. `6) I have shown wheel 13 provided with an annular hub 13a .upon which is rotatively mount- .ed a belt wheel or pulley 17 adapted to receive a belt or the like 18, which may be pulled to cause operation of the starting mechanism. rIhe belt 18may be guided by a pulley 19 and carried to any sultable position adjacent to an operator, and .there provided with any desired pulling device, in'a well known manner. Parts 13 and 13a may be made in a single piece or in separate pieces secured together. The wheel 17 carries one or more dogs 20, which are shown located in corresponding recesses 17a in said wheel and adapted to engage notches or teeth in the periphery of hub 13a (Fig. 4),.

whereby when band 18 is pulled and wheel 17 is rotated the wheel 13, through dogs 20,.

will be correspondingly rotated to operate chain 12 and wheel 5 for causing starting of the engine shaft. r1`he reverse rotation of wheel 5 by means of spring 9 causes chain 12 to reverse the rotation of wheels 13 and 17 to rewind l'belt 18 on the latter. -To cause disconnection of the dog or dogs 20 from Wheel 13, in casethe engine should j back kick when beingstarted, I provide the dogs 20 with projections 21 that are adapted to coact with camlike or outwardly inclined portions 22a on a rotative member'or Wheel 22 that is mounted to rotate upon a hub or bearing of bracket 15 (Figs.l 6 and 9). rlhe member 22 is provided with stops 22a adjacent to the cam-like portions 22b to be engaged by 22 is provided with peripheral teeth adapted to be engaged by spring pressed pawl 23 pivotally carried by bracket 15.

The arrangement is such that when wheel 17 is rotated by belt 18, the projections 21 'ber 22, will cause rotation of the latter, its

' teeth slipping under pawl v.23. If the engine back kicks while the clutch members 3 4and 5 are in engagement, the reverse rotation of wheel 13 caused by wheel 5 reversing the l travel of chain 12,l carries dogs 20 reversely, causing the projections-21 of said dogs to immediately ride on the cam-like portions 2.2a and then, since member 22 is restrainedprojections 21. Rotative member from reverse rotation by pawl 23, the dogs 20 will be lifted out of engagement with the teeth of hub 13a, and thus pulley 17 will be released from the inuence of the reverse rotationof the engine shaft,.and injury to the parts and to the operator will be prevented. As soon, however, as shaft 2 comes to rest and band 18 is a ain pulled by the operator the dogs 20 will inclines 22*l to permit the dogs to again engage teeth of hub 13 for operating chain 12 and starting the engine shaft as required.-

From the foregoing it will be understood that the operator need merely pull band or belt 18 to communicate .motionthrough dogs l20 to wheel 13, the. latter then operating chain 12, thereby to cause rotation of wheel 5 and the automatic engagement of clutch members 3, 5, whereupon a continued pull upon belt 18 will cause rotation of engine shaft 2, andv that when the pull upon belt f 18 isreleased the spring 9 will cause reverse rotation of said parts and rewinding of belt 18 upon wheel 17 ready for another operation, it being noted that as soon as the engine starts to rotate under its own power the clutch members 3, 5, willbe disengaged, in the manner before stated, for continued rotation of the shaft without continued ro- 'tation of the parts of the starter mechanism other than clutch member 3. My invention,

therefore, comprises the advantages of automatic clutching and) unclutching of the members 3 and 5, and automatic release of the starting devices from the pulling band or belt in the event of back ick of the engine.

While I have illustrated a practical and elhcient mechanism for the purpose stated, it will be understood that changes may be made in the details of construction and arrangement of parts set forth within the scope of the appended claims, without departing from the spirit of the invention.

Having now described my invention what I claim is 1. The combination of a shaft provided with a clutch member, a Wheel provided with a clutch member to coact with the irst named clutch member, means to rotate said tweensaid Wheels to cause engagement of e moved and theirl projectlons 21 Will pass down the cam-like' said clutch members when onev wheel moves relatively to the other, means to restrain rotation of the first named wheel by the second named wheel, and a spring connected with said wheels to be wound upon rotation of the first named wheel and adapted to cause reverse rotation of said wheel.

3. The combination of a shaft provided with a clutch member, a wheel provided with a clutch member to coact with the first named clutch member, means to rotate said wheel, projecting and rentrant parts between said wheels to permit normal disengagement of said clutch members and to cause engagement thereof when said projecting and reentrant parts move relatively one to another, the second named wheel being provided with teeth,l a dog to coact with said teeth to restrain rotation -of said wheel in one direction, and a spring connecting said wheels to permit the first named wheel to have limited rotation relatively to the second named wheel and to cause reverse rotation of the first named wheel.

4. The combination of a shaft, clutch members to rotate the shaft, means to retain said members in normal disengagement and to cause engagement of said members for rotation of the shaft, a wheel, means operatively connecting said wheel with one `of said clutch members, a second wheel provided with a dog, the rst named wheel having a tooth to engage 'said dog, said dog having a projection, a rotative member having a cam-like portion and a stop to coact with said projection, whereby said member may be rotated in one direction by said projection coacting with said stop, and means to prevent reverse rotation of said member to cause said cam-like portion to release said dog from said tooth.

5. The combination of a wheel having a tooth, a second wheel provided with a dog to engage said tooth, said dog being provided with aprojection, means coactive with said projection and movable by and with the same in one direction, and means to stopy reverse rotation of the last named means to cause release of said dog from said tooth upon vreverse rotation of Said dog.

6. The combination of a wheel having a tooth, a second wheel provided with a dog to engage said tooth, said dog being provided with a projection, a rotative member having a cam-like portion and a stop to coact with said projection, whereby said member may be rotated in one direction by said projection coacting with said stop, and means to prevent reverse rotation of said member to cause said cam-like portion to release said dog from said tooth.

7. The combination of a wheel having a tooth, a; second wheel provided with a dog to engage said tooth, said dog being provided with a projection, a rotative member having a cam-like portion, and a stop to coact with said projection, whereby said member may be rotated in one direction by said projection coacting with said stop, said member having teeth, and a dog coactive with said lteeth to permit rotation of said member with the dog in one direction and to prevent reverse rotation of said member when the dog rotates reversely.

8. rThe combination of a shaft, a wheel, clutch. members between the shaft and wheel for operating the former by the latter, means coactive with said wheel for causing engagement'of the clutch members when the wheel is moved in one direction and for causing disengagement of such members when the shaft moves in such direction, a second wheel, means operatively connecting said wheels,

means to rotate said second wheel in one d1- rection, and means to cause release of said wheel from said rotating means upon reverse rotation of said wheel.

9. rlhe combination of a shaft, a wheel, clutch members between the shaft and wheel for operating the former by the latter, means coactive with said wheel for causing engagement of the clutch members when the wheel is movedv in one direction and for causing disengagement of such members when the shaft moves in such direction, a second wheel, means operatively connecting said wheels, a third wheel, devices interposed between the second and third wheels for rotating one by the other in one direction, and means to cause disengagement of said devices upon rotation of the second named wheel by the first named Wheel in a reverse direction.

10. The combination of a shaft, a wheel, clutch members between the shaft and wheel for operating the former by the latter, means coactive with said wheel for causin engagement of the clutch members when t e wheel is moved in one direction and for causing disengagement of such members when the shaft moves in'such direction, a second wheel, means operatively connecting said wheels, a third wheel provided with a dog, the second named wheel having a tooth to engage said dog, said dog having a projection, a rotative member having a cam-like portion and a stop to coact with said projection whereby said member may be rotated in one direction by said projection coacting with said stop, and means to prevent reverse rotation of said member to cause said cam-like Portion to release said dog from said tooth..

Signed at New York-city, in the county of New York and State of New York this 12th j daj7 of May, A. D. 1916.

PAUL ECHTER. 

